Typo in ReadableMetadata.getScale()

[Michael-A-McMahon]

The doc states "... or if the precision cannot be provided". I think it was meant to be: " or if the scale cannot be provided"

r2dbc-spi/r2dbc-spi/src/main/java/io/r2dbc/spi/ReadableMetadata.java

Line 113 in 35863e1

* Returns {@code null} for data types where the scale is not applicable or if the precision cannot be provided.